＊1： Correction of rated torque and max. torque due to load fluctuation is not required.However, if ambient temperature exceeds 30°C, be sure to correct the rated torque and max. torque with temperature correction factor shown in the table.MJC-CSK's allowable operating temperature is -20°C to 60°C.
＊2： These are values with max. bore diameter.

Sleeve Details

Tight Fit

The hub and sleeve are press-fit and can be used under zero backlash＊1.Since the sleeve's vibration absorption can raise the gain of a servomotor, this unit can achieve high responsive operation exceeding the Disk coupling.

＊1： For the torque used under zero backlash, please refer to dimensional table.

Easy Fit

This unit allows you to easily assemble and partition the hub and sleeve. This allows you to reduce the time of assembling the unit and maintenance.It is possible to mount a hub on the shaft in advance and easily assemble the unit even in a location where the coupling is less-visible.

Slip torque

Concerning the sizes shown in the table, please note that the shaft's slip torque is smaller than the max. torque of MJC-CS.

Unit : N・m

Part Number

Bore Diameter (mm)

3

4

4.5

5

6

6.35

7

8

9.525

10

11

12

14

15

16

18

19

20

22

24

25

28

30

32

35

38

40

42

45

48

50

55

MJC-14CS

0.8

1.4

1.7

2.1

1.3

1.4

1.5

MJC-20CS

3.4

4.1

4.9

6.4

6.9

7.9

9.4

5.1

6

8

MJC-25CS

1.7

2.4

3.2

4.8

5.3

6.4

7.9

10

11

8.1

9.4

MJC-30CS

4

4.9

6.6

9.3

13

14

17

20

15

21

27

MJC-40CS

18

23

24

28

31

38

MJC-55CS

29

33

39

46

59

65

72

85

91

98

110

120

130

110

120

MJC-65CS

100

110

130

160

170

190

220

250

260

310

330

360

180

200

MJC-80CS

150

170

180

190

220

240

260

290

320

340

360

500

MJC-95CS

340

410

460

500

500

500

500

500

500

500

500

500

These are test values based on the condition of shaft's dimensional allowance: h7, hardness: from 34-40 HRC, and screw tightening torque of the values described in MJC-CS dimensional table.

Concerning the sizes shown in the table, please note that the shaft's slip torque is smaller than the max. torque of MJC-CS.

Unit : N・m

Part Number

Bore Diameter (inch)

1/8

3/16

1/4

5/16

3/8

7/16

1/2

9/16

5/8

11/16

3/4

13/16

7/8

15/16

1

1-1/8

1-1/4

1-3/8

1-1/2

1-5/8

1-3/4

MJC-14CS

0.9

1.9

1.4

MJC-20CS

4.5

6.9

9.3

5.1

MJC-25CS

2.9

5.3

7.8

10

8.2

10

MJC-30CS

4.9

9.1

13

17

7.5

17

26

MJC-40CS

17

23

28

34

39

MJC-55CS

29

40

50

60

71

81

91

100

110

120

130

110

120

MJC-65CS

85

100

130

150

170

200

220

240

270

310

360

180

200

MJC-80CS

140

150

170

180

200

230

260

290

320

350

500

MJC-95CS

350

420

500

500

500

500

500

These are test values based on the condition of shaft's dimensional allowance: h7, hardness: from 34-40 HRC, and screw tightening torque of the values described in MJC-CS dimensional table.

Change in static torsional stiffness due to temperature

This is a value under the condition where the static torsional stiffness at 20°C is 100%.
The change of torsional stiffness within the range of allowable operating temperature is as shown in the graph.
Before using the unit, be aware of the deterioration of responsiveness.